Home / 13,087.37-18,059.99-7,118.91

Finding the Fourth Proportional to 13,087.37, 18,059.99 and 7,118.91

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Solution

The fourth proportional to 13,087.37, 18,059.99 and 7,118.91 is: 9,823.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,087.37 : 18,059.99 = 7,118.91 : x
  2. Step 2: Convert to fraction form
    13,087.37/18,059.99 = 7,118.91/x
  3. Step 3: Cross multiply
    13,087.37x = 18,059.99 × 7,118.91
  4. Step 4: Simplify right side
    13,087.37x = 128,567,478.63
  5. Step 5: Solve for x
    x = 128,567,478.63/13,087.37
  6. Step 6: Final answer
    x = 9,823.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.